«اِبْنْ يُومِينْ مَا يْعِيشْ تَلَاتَةْ»

The proverb presents a person's lifespan as having a fixed limit. When that limit is reached, no wish or effort can add another day.

The contrast between two days and a third makes mortality vivid through a small, definite span of time. It expresses the inevitability of death, not a way to predict anyone's lifespan.

It could be used when reflecting on a death or on the limits of attempts to prolong life, if the intended point is that no one can live beyond their allotted time. It should not be used to suggest that a particular person's remaining days are known.